October Toby' Daye, a changeling who is half human and half fae, has been an outsider from birth. After being rejected by both sides of her heritage, Toby has denied the Faerie world, retreating to a 'normal' life. Unfortunately for her, the faerie world has other ideas. The murder of Countess Evening Winterrose pulls Toby back into the fae world. Unable to resist Evening's dying curse, which binds her to investigate, Toby must resume her former position as knight errant and renew old alliances.'

Half-fae Toby retreats to the human world after being rejected by her Faerie family, but finds her anonymity compromised by the murder of an important countess who binds her to investigate, forcing Toby to resume her fae position.